/*
* SSHTools - Java SSH2 API
*
* Copyright (C) 2002-2003 Lee David Painter and Contributors.
*
* Contributions made by:
*
* Brett Smith
* Richard Pernavas
* Erwin Bolwidt
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
import java.awt.Color;
public class Util {
/**
* Return a string representation of a color
*
* @param color
* @return string representation
*/
public static String colorToString(Color color) {
if (color == null) {
return "";
}
StringBuffer buf = new StringBuffer();
buf.append('#');
buf.append(numberToPaddedHexString(color.getRed(), 2));
buf.append(numberToPaddedHexString(color.getGreen(), 2));
buf.append(numberToPaddedHexString(color.getBlue(), 2));
return buf.toString();
}
/**
* Convert a number to a zero padded hex string
*
* @param int number
* @return zero padded hex string
* @throws IllegalArgumentException
* if number takes up more characters than size
*/
public static String numberToPaddedHexString(int number, int size) {
String s = Integer.toHexString(number);
if (s.length() > size) {
throw new IllegalArgumentException(
"Number too big for padded hex string");
}
StringBuffer buf = new StringBuffer();
for (int i = 0; i < (size - s.length()); i++) {
buf.append('0');
}
buf.append(s);
return buf.toString();
}
}